# Copyright (C) 2005-2024 Splunk Inc. All Rights Reserved.

import sys

from splunk.clilib.bundle_paths import make_splunkhome_path
sys.path.append(make_splunkhome_path(['etc', 'apps', 'SA-UserAccess', 'lib']))
from user_access_utils import UserAccess

from itsi.content_packs import constants
from itsi.content_packs.itoa import get_itoa_identifier_fields, get_itoa_object_class, get_itoa_object_title
from itsi.content_packs.journal import EntryType


USERACCESS_ACL = {
    'read': ['*'],
    'write': ['*'],
    'delete': ['*']
}

ITSI_ACL = {
    'can_change_perms': True,
    'can_share_app': True,
    'can_share_global': True,
    'can_share_user': True,
    'can_write': True,
    'modifiable': True,
    'owner': 'nobody',
    'perms': {
        'read': ['*'],
        'write': ['*']
    },
    'sharing': 'app'
}


class AccessConfigurator(object):
    """
    Configures ACLs for content objects.
    """

    def __init__(self, logger, session_key):
        """
        :param logger: a logger instance
        :type logger: Logger

        :param session_key: the session key
        :type session_key: str
        """
        self.logger = logger
        self.session_key = session_key

    def process_objects(self, content_objects, journal):
        """
        Configures ACLs for supported content type objects.

        :param content_objects: the content objects data
        :type content_objects: dict

        :param journal: a journal instance
        :type journal: TransactionJournal

        :return: the content objects data
        :rtype: dict
        """
        for content_type, objects in content_objects.items():
            if content_type not in constants.CONTENT_TYPES_WITH_ACL:
                continue

            self.configure_access(content_type, objects, journal=journal)

        return content_objects

    def configure_access(self, content_type, objects, journal):
        """
        Configures ACLs for the given content objects.

        :param content_type: the content type
        :type content_type: str

        :param objects: the list of objects data
        :type objects: list

        :param journal:
        :type journal: TransactionJournal
        """
        object_type = constants.CONTENT_TYPE_TO_ITOA_TYPE.get(content_type)
        if not object_type:
            self.logger.warning(
                'Unsupported content_type="%s" found while configuring ACLs', content_type
            )
            return

        itoa_object_class = get_itoa_object_class(content_type)
        if not itoa_object_class:
            self.logger.warning(
                'No object class available for content_type="%s"', content_type
            )
            return

        object_storename = getattr(itoa_object_class, 'collection_name', None)
        if not object_storename:
            self.logger.warning(
                'No collection name associated for content_type="%s"', content_type
            )
            return

        object_ids = self.configure_itsi_acl(content_type, objects)
        if not object_ids:
            return

        try:
            UserAccess.bulk_update_perms(
                object_ids=object_ids,
                acl=USERACCESS_ACL,
                object_app='itsi',
                object_type=object_type,
                object_storename=object_storename,
                session_key=self.session_key,
                logger=self.logger
            )
        except Exception as ex:
            self.logger.error(
                'Failed to bulk update permissions for content_type="%s" object_type="%s" '
                'object_storename="%s" object_ids="%s"',
                content_type,
                object_type,
                object_storename,
                object_ids
            )
            self.logger.exception(ex)

            journal.failure({
                'error_message': str(ex),
                'type': EntryType.ERROR_BULK_UPDATE_PERMS,
                'content_type': content_type,
                'object_type': object_type,
                'object_storename': object_storename,
                'ids': object_ids,
                'titles': list({get_itoa_object_title(content_type, obj) for obj in objects})
            })

    def configure_itsi_acl(self, content_type, objects):
        """
        Sets ACLs for valid objects and returns these object ids .

        :param content_type: the content type
        :type content_type: str

        :param objects: the list of objects data
        :type objects: list

        :return: the list of object ids
        :rtype: list
        """
        object_ids = []

        id_field = get_itoa_identifier_fields(content_type)[0]

        for obj in objects:
            object_id = obj.get(id_field)
            if object_id:
                obj['acl'] = ITSI_ACL
                obj['_owner'] = 'nobody'
                object_ids.append(object_id)
            else:
                self.logger.warning('No _key field found for object="%s"', obj)

        return object_ids